Answer
$\frac{9}{x^{6}y^{13}}$
Work Step by Step
$\frac{9x^{-4}y^{-6}}{x^{2}y^{7}}$=$\frac{9}{x^{2+4}y^{7+6}}$=$\frac{9}{x^{6}y^{13}}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.